Improvement in railway-car trucks



2 Shees--Shee-l 1l M. H. K0`L.LocK. Railway Car-Trucks.

Patented Feb. 25,1873.

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PATENT OFFICE.

MATTHEV H. KOLLOGK, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN RAILWAY-CAR TRUCKS.

Specification forming part of Letters Patent No. 136,248, dated February 25, 1873.

T0 all whom 'it may concern:

Beit known that I, MATTHEW H. KoLLooK, of the city of Philadelphia, in the State of Pennsylvania, have invented certain Improvements in the Swivel Movement of the Rear Axle of Oar-Trucks, of which the following is a specification:

The invention consists in the combination of one end of a connecting-rod with a crank by means ot' a ball-and-socket joint in the middle of the front axle, the other end being connected with a crank of the rear axle, in the usual manner. The connection oi' the axles is t0 secure the traction of all the wheels While running on curves.

Figure 1 is a side elevation ot' a truck with the improvements attached. Fig. 2 is "a reversed plan of the same. Fig. 3, Sheet No.2, is an isometrical View of the swivel-frame F in a reversed position. Fig. 4 is a like View of the front axle C. Fig. 5 is a longitudinal section of the connecting-rod H.

A is an ordinary car-truck. B B and B B are the wheels on the axles C U. The journals of the front axle are supported by means of ixed pedestals E E in the usual manner, but the pedestals E E, which support the journals ot' the rear axle C', project from the underA side of the swivel-frame F, which is shown in detail in Fig. 3. The swivel-frame turns on the center-pin G, which projects from the under side of the longitudinal timber a of the truck A. The pin is arranged vertically with thc axle C and at the middle of the same, so as to admit of the rear Wheels B B following the rails freely in turning curves. The con` necting-rod H is connected with the cranks I and I of the axles G and C', it being connected with the front axle O by means ot' the ball b ot' the axle and socket cof the rod, which are shown in detail in Figs. 4 and 5. The rear end of the rod is connected with the crank l', in the usual manner.

I claim as my invention The combination of the ball b ofthe axle (l and the socket c in the front end of the con necting-rod H, the rear end of the rod being connected with the crank 1, in the usual marner, substantially in the manner and for thc purpose specitied.

MATTHEW H. KOLLOCK. Witnesses:

THOMAS J. BEWLEY, STEPHEN Usrrcx. 

